Odpowiedź :
[tex]dane:\\m = 12 \ kg\\h = 25 \ m\\g = 10\frac{N}{kg}\\W = ?\\\\Rozwiazanie\\\\W = E_{p} = mgh\\\\W = mgh\\\\W = 12 \ kg\cdot25 \ m\cdot10\frac{N}{kg}\\\\W = 3 \ 000 \ J = 3 \ kJ\\\\(1 \ kJ = 1000 \ J)[/tex]
[tex]dane:\\m = 12 \ kg\\h = 25 \ m\\g = 10\frac{N}{kg}\\W = ?\\\\Rozwiazanie\\\\W = E_{p} = mgh\\\\W = mgh\\\\W = 12 \ kg\cdot25 \ m\cdot10\frac{N}{kg}\\\\W = 3 \ 000 \ J = 3 \ kJ\\\\(1 \ kJ = 1000 \ J)[/tex]